Home / 49,929.40-74,873.52-20,327.20

Finding the Fourth Proportional to 49,929.40, 74,873.52 and 20,327.20

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Solution

The fourth proportional to 49,929.40, 74,873.52 and 20,327.20 is: 30,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,929.40 : 74,873.52 = 20,327.20 : x
  2. Step 2: Convert to fraction form
    49,929.40/74,873.52 = 20,327.20/x
  3. Step 3: Cross multiply
    49,929.40x = 74,873.52 × 20,327.20
  4. Step 4: Simplify right side
    49,929.40x = 1,521,969,015.74
  5. Step 5: Solve for x
    x = 1,521,969,015.74/49,929.40
  6. Step 6: Final answer
    x = 30,482.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.